Michal Hocko 6c5ab6511f mm: support __GFP_REPEAT in kvmalloc_node for >32kB ... vhost code uses __GFP_REPEAT when allocating vhost_virtqueue resp. vhost_vsock because it would really like to prefer kmalloc to the vmalloc fallback - see 23cc5a991c ("vhost-net: extend device allocation to vmalloc") for more context. Michael Tsirkin has also noted: "__GFP_REPEAT overhead is during allocation time. Using vmalloc means all accesses are slowed down. Allocation is not on data path, accesses are." The similar applies to other vhost_kvzalloc users. Let's teach kvmalloc_node to handle __GFP_REPEAT properly. There are two things to be careful about. First we should prevent from the OOM killer and so have to involve __GFP_NORETRY by default and secondly override __GFP_REPEAT for !costly order requests as the __GFP_REPEAT is ignored for !costly orders. Supporting __GFP_REPEAT like semantic for !costly request is possible it would require changes in the page allocator. This is out of scope of this patch. This patch shouldn't introduce any functional change. Link: http://lkml.kernel.org/r/20170306103032.2540-3-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-05-08 17:15:12 -07:00
..
kasan	kasan: separate report parts by empty lines	2017-05-03 15:52:12 -07:00
backing-dev.c	bdi: Drop 'parent' argument from bdi_register[_va]()	2017-04-20 12:09:55 -06:00
balloon_compaction.c
bootmem.c	mm/bootmem.c: cosmetic improvement of code readability	2017-02-22 16:41:29 -08:00
cleancache.c
cma.c	cma: Introduce cma_for_each_area	2017-04-18 20:41:12 +02:00
cma.h	cma: Store a name in the cma structure	2017-04-18 20:41:12 +02:00
cma_debug.c	cma: Store a name in the cma structure	2017-04-18 20:41:12 +02:00
compaction.c	mm, compaction: finish whole pageblock to reduce fragmentation	2017-05-08 17:15:10 -07:00
debug.c
debug_page_ref.c
dmapool.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
early_ioremap.c
fadvise.c
failslab.c
filemap.c	fs: fix data invalidation in the cleancache during direct IO	2017-05-03 15:52:12 -07:00
frame_vector.c
frontswap.c
gup.c	mm/gup.c: fix access_ok() argument type	2017-05-03 15:52:12 -07:00
highmem.c
huge_memory.c	mm: make ttu's return boolean	2017-05-03 15:52:10 -07:00
hugetlb.c	mm/hugetlb.c: don't call region_abort if region_chg fails	2017-03-31 17:13:30 -07:00
hugetlb_cgroup.c
hwpoison-inject.c	mm: hwpoison: call shake_page() unconditionally	2017-05-03 15:52:12 -07:00
init-mm.c
internal.h	mm, compaction: finish whole pageblock to reduce fragmentation	2017-05-08 17:15:10 -07:00
interval_tree.c
Kconfig	mm: remove AVR32 arch special handling in mm/Kconfig	2017-05-01 09:36:31 +02:00
Kconfig.debug	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
khugepaged.c	mm: do not use double negation for testing page flags	2017-05-03 15:52:09 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: fix section name for .data..ro_after_init	2017-03-31 17:13:30 -07:00
ksm.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
list_lru.c
maccess.c
madvise.c	mm/madvise: move up the behavior parameter validation	2017-05-03 15:52:11 -07:00
Makefile	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
memblock.c	memblock: add memblock_cap_memory_range()	2017-04-05 18:26:50 +01:00
memcontrol.c	mm: memcontrol: use node page state naming scheme for memcg	2017-05-03 15:52:11 -07:00
memory-failure.c	mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page	2017-05-03 15:52:12 -07:00
memory.c	Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc	2017-04-02 10:33:48 -04:00
memory_hotplug.c	mm, vmscan: prevent kswapd sleeping prematurely due to mismatched classzone_idx	2017-05-03 15:52:09 -07:00
mempolicy.c	mm/mempolicy.c: fix error handling in set_mempolicy and mbind.	2017-04-08 10:57:55 -07:00
mempool.c
memtest.c
migrate.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
mincore.c	mm: remove shmem_mapping() shmem_zero_setup() duplicates	2017-02-24 17:46:56 -08:00
mlock.c	mm: make try_to_munlock() return void	2017-05-03 15:52:10 -07:00
mm_init.c
mmap.c	mm/mmap: replace SHM_HUGE_MASK with MAP_HUGE_MASK inside mmap_pgoff	2017-05-03 15:52:10 -07:00
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mmu_notifier.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
mmzone.c	mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()	2017-02-22 16:41:29 -08:00
mprotect.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
mremap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
msync.c
nobootmem.c
nommu.c	mm: introduce kv[mz]alloc helpers	2017-05-08 17:15:12 -07:00
oom_kill.c	oom: improve oom disable handling	2017-05-03 15:52:10 -07:00
page-writeback.c	mm: memcontrol: use node page state naming scheme for memcg	2017-05-03 15:52:11 -07:00
page_alloc.c	mm, compaction: restrict async compaction to pageblocks of same migratetype	2017-05-08 17:15:10 -07:00
page_counter.c
page_ext.c	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
page_idle.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
page_io.c
page_isolation.c	mm, page_alloc: count movable pages when stealing from pageblock	2017-05-08 17:15:10 -07:00
page_owner.c
page_poison.c	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
page_vma_mapped.c	mm: fix page_vma_mapped_walk() for ksm pages	2017-04-08 00:47:48 -07:00
pagewalk.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
percpu-km.c
percpu-vm.c	percpu: remove unused chunk_alloc parameter from pcpu_get_pages()	2017-03-06 15:56:55 -05:00
percpu.c	Merge branch 'sched/core' into locking/core	2017-04-04 11:31:12 +02:00
pgtable-generic.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
quicklist.c
readahead.c
rmap.c	mm: memcontrol: use node page state naming scheme for memcg	2017-05-03 15:52:11 -07:00
rodata_test.c	mm: remove rodata_test_data export, add pr_fmt	2017-05-03 15:52:09 -07:00
shmem.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
slab.c	slab: avoid IPIs when creating kmem caches	2017-05-03 15:52:07 -07:00
slab.h	slab: remove synchronous synchronize_sched() from memcg cache deactivation path	2017-02-22 16:41:27 -08:00
slab_common.c	kasan: drain quarantine of memcg slab objects	2017-02-24 17:46:56 -08:00
slob.c	slab: introduce __kmemcg_cache_deactivate()	2017-02-22 16:41:27 -08:00
slub.c	slub: make sysfs directories for memcg sub-caches optional	2017-02-22 16:41:27 -08:00
sparse-vmemmap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
sparse.c	mm/sparse: refine usemap_size() a little	2017-05-03 15:52:09 -07:00
swap.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
swap_cgroup.c	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()	2017-04-08 00:47:49 -07:00
swap_slots.c	mm/swap_slots.c: add warning if swap slots cache failed to initialize	2017-05-03 15:52:10 -07:00
swap_state.c	mm, swap: fix comment in __read_swap_cache_async	2017-05-03 15:52:10 -07:00
swapfile.c	mm/swapfile.c: fix swap space leak in error path of swap_free_entries()	2017-05-03 15:52:12 -07:00
truncate.c	mm/truncate: avoid pointless cleancache_invalidate_inode() calls.	2017-05-03 15:52:12 -07:00
usercopy.c	mm/usercopy: Drop extra is_vmalloc_or_module() check	2017-04-05 12:30:18 -07:00
userfaultfd.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
util.c	mm: support __GFP_REPEAT in kvmalloc_node for >32kB	2017-05-08 17:15:12 -07:00
vmacache.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
vmalloc.c	mm, vmalloc: properly track vmalloc users	2017-05-08 17:15:12 -07:00
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	2017-02-24 17:46:56 -08:00
vmscan.c	mm: memcontrol: use node page state naming scheme for memcg	2017-05-03 15:52:11 -07:00
vmstat.c	mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo	2017-05-03 15:52:08 -07:00
workingset.c	mm: memcontrol: use node page state naming scheme for memcg	2017-05-03 15:52:11 -07:00
z3fold.c	z3fold: fix page locking in z3fold_alloc()	2017-04-13 18:24:20 -07:00
zbud.c
zpool.c
zsmalloc.c	zsmalloc: expand class bit	2017-04-13 18:24:21 -07:00
zswap.c	zswap: don't param_set_charp while holding spinlock	2017-02-27 18:43:45 -08:00